. >> president obama toured fema headquarters and says the federal government is standing by to provide assistance. >> and this is a live picture right now at kill devil hills, north carolina. you can see that tide coming in. pretty severe there. transit systems are also being shut down in philadelphia, baltimore and washington. amtrak has suspended service across the northeast. schools are closed today. and the new york stock exchange and nasdaq will also be closed and the united nations has canceled all meetings at headquarters. >> flights have been canceled for the next 48 hours. thousands of flights. boston, new york, philly and washington d.c. just about everything in sandy's sights. so many airlines store planes in those cities, passengers on the west coast will feel the impact throughout the next few days. check flight status well ahead of time and don't go to the airport if it's canceled. four flights have been canceled so far from oakland and san jose. make phone calls, get online and check it out. >> this storm is unprecedented. >> it's something we haven't seen quite a while.